“He is the tallest boy in his class.”means“______”.

We all know that learning a skill _________ time and effort.

Mum，you really need to have a rest！You ________in the kitchen ever since you came back home three hours ago

______was most shocking about the tornadoes in America was that they threatened sixstates and killed more than 100 persons

e to my lecture. Hopefully, there are enough seats for each visitor to have .